Radio frequency switch for suppressing intermodulation

US8995944B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8995944-B2
Application numberUS-201113170593-A
CountryUS
Kind codeB2
Filing dateJun 28, 2011
Priority dateDec 9, 2010
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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Abstract

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A radio frequency (RF) switch adapted to reduce third order intermodulation (IM3) products generated as RF signals propagate through the RF switch is disclosed. The RF switch includes N semiconductor switch segments, and N−1 phase shift networks, individual ones of the N−1 phase shift networks being coupled between adjacent ones of the N semiconductor switch segments where N is a natural number greater than 1. In operation, when the RF switch is on, IM3 products generated by the RF switch propagating through the N−1 phase shift networks are phase shifted such that the IM3 products are at least partially canceled.

First claim

Opening claim text (preview).

What is claimed is: 1. A radio frequency (RF) switch adapted to suppress third order intermodulation (IM3) products generated as RF signals propagate through the RF switch comprising: N and only N semiconductor switch segments; and N−1 and only (N−1) phase shift networks, individual ones of the N−1 phase shift networks being coupled between and in series with adjacent ones of the N and only N semiconductor switch segments where N is a natural number that is at least 3, and where…

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What does patent US8995944B2 cover?
A radio frequency (RF) switch adapted to reduce third order intermodulation (IM3) products generated as RF signals propagate through the RF switch is disclosed. The RF switch includes N semiconductor switch segments, and N−1 phase shift networks, individual ones of the N−1 phase shift networks being coupled between adjacent ones of the N semiconductor switch segments where N is a natural number…
Who is the assignee on this patent?
Caron Joshua J, Rf Micro Devices Inc
What technology area does this patent fall under?
Primary CPC classification H04B1/48. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).